Y90-Y99 · 5 Entries
Y90Evidence of alcohol involvement determined by blood alcohol levelCategory · further specificity requiredY92Place of occurrence of the external causeCategory · further specificity requiredY93Activity codesCategory · further specificity requiredY95Nosocomial conditionBillable / specificY99External cause statusCategory · further specificity requiredThese categories may be used to provide supplementary information concerning causes of morbidity. They are not to be used for single-condition coding.